Re-reviewing the footage, the attacks shown were (probably, judging by animations. This may not be final, there might be some additional tweaks done to the two before release):
Pyra:
Mythra:
(Mii Swordfighter could really use a PreMiium...)
Pyra:
- Down Air: Sword swing downwards in a 180 degree arc. Does not stall n fall.
- Up tilt: Overhead slash, like Cloud's. Appears to have some endlag attached.
- Forward Tilt?: Looks animation-wise like Byleth's Areadbhar (Side B), sends at a roughly 45 degree angle.
- Back Air: Quick slash behind her, Has some endlag apparently because she spins 360 degrees herself.
- Smash Flare!! (F-Smash): Overhead swing, really strong knockback but noticeable endlag. Can seemingly be performed pretty shortly after touching ground.
- Flame Nova!! (B?): Visually Toon Link's spin with fire effect. One can notice a charge up period. Sends at a roughly 45 degree angle, seemingly like Toon Link's.
- Prominence Revolt!! (Up-B maybe?): Dragoon jump / Mii Swordfighter's Stone Scabbard move. Has an AoE impact on the ground, so probably best used as a call out option outside of recovery. Can in some situations likely be used to surprise people at the edge.
- Blazing End!! (Side B likely) : Tosses the sword like a chakram. The sword travels to a spot and spins in place. Not the typical projectile move - might be best used to force opponents to shield or jump if one doesn't connect. Might be a really good edgeguard tool.
- Neutral Air: Spins the blade quickly. Does not last long, but has wide range (I'm reminded of
's N-Air). Might have some endlag though. - Forward Air: Underhand slash. Travels in an 180 degree arc in front of her. Does have relatively little endlag seemingly.
Mythra:
- First attack shown has a similiar animation as Smash Flare!! (except the effects of course). Might be a bit faster, but we'll have to see.
- She then N-Air's (seemingly) Byleth and gets a grab. The gemstone sparkles just before the grab gets active. Back-throw is a kick behind her, doesn't send the opponent far.
- Lightning Buster!! (B?): Charge move. She holds her sword up high before unleashing a flurry of attacks. Has seemingly a "Trapping" first hitbox, where if the opponent gets caught (s)he's taking the entire thing. Doesn't have huge horizontal range, but can hit a short hopping opponent.
- Photon Edge!! (Side B?? The DBZ move): Performs several rapid-fire Dimensional Capes in an area. Can likewise trap the opponent hit and thus ensue that (s)he gets hit multiple times.
- Ray of Punishment!! (Up B perhaps?): Shulk's Air Slash followed by a beam fired diagonally downwards. The move to use out of shield perhaps?
- Chrome Dust!! (?): Fires shots diagonally downwards. Can hit multiple targets simultaneously, so perhaps useful for crowd control or general bombardment.
- Foresight!! (?? Is this Down B?): Vision combined with the "Teleports behind you" meme. As with any Counter, probably going to be used for the mindgames. Might be a really good disrespect move. S-tier move casually.
- She then Up-Tilts, which again looks like Pyra's Up-tilt and might be a major clue that the two share normals. Might be, could be wrong.
- Pyra then Down Smashes, which looks like a smaller but slightly quicker Shulk Down Smash.
- After Pyra uses F-Air, Mythra shows off Down Tilt, which is a scoop with the sword. Probable combo starter.
- Mythra's Up Air is the final move shown, a Sephiroth-esque swing. Of course, Mythra does not have Sephiroth's range, but that Up-Air looked fast.
I'm also expecting a complete surprise Mii Costume, whether it's a Vault Boy situation or a Bomberman one.
(Mii Swordfighter could really use a PreMiium...)
